Position sensor convenient to disassemble and assemble

Abstract

The utility model provides a position sensor convenient to disassemble and assemble, which belongs to the technical field of sensors, and comprises a fixed seat, the fixed seat is fixedly arranged on a shaft end shell of a motor through screws, one end of the fixed seat is in threaded connection with a sealing cover, a sensor stator and a sensor rotor are arranged in an inner cavity of the fixed seat, and the position sensor further comprises a positioning mechanism, the positioning mechanism is arranged on the end face of an inner cavity of the fixing base. And the quick release mechanisms are arranged on the two sides of the sensor stator. According to the utility model, through the design of the quick dismounting mechanism, a user can easily realize quick mounting and dismounting of the sensor stator, so that the working efficiency is improved, the maintenance cost is reduced, and as the sensor stator can be quickly dismounted, the user does not need to dismount the whole sensor from the motor when maintaining or replacing the sensor, and the maintenance cost is reduced. And only the stator needs to be replaced independently or necessary maintenance needs to be carried out, so that the maintainability of the sensor is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of sensors, and in particular relates to a position sensor that is easy to disassemble and assemble. Background Art

[0002] With the continuous development of motor technology and the expansion of its application fields, the importance of motor rotor position detection has become increasingly prominent. Motor rotor position detection is one of the key technologies to achieve precise motor control, optimize performance and ensure safe operation. Position sensors are the core components to achieve this technology, and their performance and application range directly affect the overall performance of the motor.

[0003] In the use of existing position sensors, the efficiency of installation and disassembly is obviously insufficient. Installing and disassembling the sensor stator is not only time-consuming, but also requires the use of additional tools, which greatly increases the complexity of the operation and thus reduces work efficiency. More importantly, the positioning of the sensor stator is often not precise enough. This inaccuracy will directly affect the results of the position measurement, and thus have an adverse effect on the performance and accuracy of the entire system. Utility Model Content

[0004] The utility model aims to provide a position sensor that is easy to assemble and disassemble, aiming to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A position sensor that is easy to disassemble and assemble, comprising a fixing seat, the fixing seat being fixedly mounted on the shaft end housing of a motor by screws, one end of the fixing seat being threadedly connected with a cover, the inner cavity of the fixing seat being provided with a sensor stator and a sensor rotor, and further comprising:

[0007] A positioning mechanism, the positioning mechanism is arranged on the end surface of the inner cavity of the fixing seat;

[0008] A quick release mechanism is arranged on both sides of the sensor stator.

[0009] As a preferred solution of the utility model, a fixing hole is provided on the surface of the sensor stator, a positioning groove is provided on one side of the sensor stator, and an insertion hole is provided on the inner wall of the fixing seat.

[0010] As a preferred solution of the utility model, the number of the quick-release mechanisms is two, and they are symmetrically disposed on two sides of the sensor stator, and the number of the positioning mechanisms corresponds to the number of the positioning slots.

[0011] As a preferred solution of the utility model, the quick-release mechanism includes a fixing rod inserted into the fixing hole. One end of the fixing rod is threadedly connected with a nut, and the other end of the fixing rod is fixedly connected with a connecting plate. Both ends of one side of the connecting plate are fixedly installed with sleeves. An expansion rod is slidably installed in the inner cavity of the sleeve. The end of the expansion rod is fixedly installed with an arc-shaped clamping plate. Both ends of one side of the arc-shaped clamping plate are fixedly installed with insertion rods. A first spring is sleeved outside the sleeve. The end of the arc-shaped clamping plate is fixedly installed with a lever.

[0012] As a preferred solution of the utility model, the insertion rod is inserted into the inner part of the insertion hole. The arc-shaped clamping plate is attached to the inner wall of the fixing seat. The first spring is located between the arc-shaped clamping plate and the connecting plate.

[0013] As a preferred solution of the utility model, the positioning mechanism includes a guide rod sleeve fixedly installed on the inner wall of the fixing seat. A guide rod is slidably installed in the inner cavity of the guide rod sleeve. A second spring is sleeved outside the guide rod sleeve. The end of the guide rod is fixedly connected with a pressing plate. The end of the pressing plate is fixedly installed with a positioning rod. The positioning rod is inserted into the inner part of the positioning groove.

[0014] As a preferred solution of the utility model, a spline is arranged inside the sensor rotor. The sensor rotor is clamped in the clamping groove on the motor rotating shaft through the spline. Through holes are opened at the centers of the fixing seat, the cover, the sensor stator and the sensor rotor for accommodating the motor rotating shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] 1. For this position sensor that is convenient for disassembly and assembly, through the design of the quick-release mechanism, users can easily achieve the quick installation and disassembly of the sensor stator, which not only improves work efficiency but also reduces maintenance costs. Since the sensor stator can be quickly disassembled, when maintaining or replacing the sensor, users do not need to remove the entire sensor from the motor, and only need to replace the stator alone or perform necessary repairs, which greatly improves the maintainability of the sensor.

[0017] 2. For this position sensor that is convenient for disassembly and assembly, through the design of the positioning mechanism, it can ensure the precise positioning of the sensor stator in the fixing seat, improve the accuracy of position measurement, reduce errors caused by inaccurate installation positions, and effectively avoid the situation of the sensor stator shifting during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the attached drawings required for the description of the embodiments. Obviously, the attached drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other attached drawings can also be obtained based on these drawings. Among them:

[0019] Figure 1 is the overall structural schematic diagram of the present utility model;

[0020] Figure 2 is the schematic diagram of the split of the cover and the fixed seat of the present utility model;

[0021] Figure 3 is the exploded view of the overall structure of the present utility model;

[0022] Figure 4 is the schematic diagram of the split of the quick-release mechanism and the sensor stator of the present utility model;

[0023] Figure 5 is the structural schematic diagram of the positioning mechanism of the present utility model.

[0024] In the figure: 1, fixed seat; 2, cover; 3, sensor stator; 4, positioning mechanism; 401, guide rod sleeve; 402, guide rod; 403, second spring; 404, pressing plate; 405, positioning rod; 5, quick-release mechanism; 501, fixed rod; 502, nut; 503, connecting plate; 504, sleeve; 505, telescopic rod; 506, arc-shaped clamping plate; 507, insertion rod; 508, first spring; 509, lever; 6, fixing hole; 7, positioning groove; 8, jack; 9, spline; 10, sensor rotor. Specific embodiments

[0025] To make the above objects, features and advantages of the present utility model more obvious and understandable, the following will make a detailed description of the specific embodiments of the present utility model in conjunction with the attached drawings of the specification.

[0026] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from the description herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0027] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure or characteristic that can be included in at least one implementation manner of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an embodiment that is separately or selectively mutually exclusive with other embodiments.

[0028] Example 1

[0029] Please refer to the figure Figures 1-5 This is the first embodiment of the present utility model. This embodiment provides a position sensor that is convenient for disassembly and assembly, including a fixed seat 1. The fixed seat 1 is fixedly installed on the shaft end housing of the motor by screws. One end of the fixed seat 1 is threadedly connected with a cover 2. A sensor stator 3 and a sensor rotor 10 are arranged in the inner cavity of the fixed seat 1. It also includes:

[0030] A positioning mechanism 4, which is arranged on the end face of the inner cavity of the fixed seat 1;

[0031] A quick-release mechanism 5, which is arranged on both sides of the sensor stator 3.

[0032] Specifically, fixing holes 6 are formed on the surface of the sensor stator 3, a positioning groove 7 is formed on one side of the sensor stator 3, and insertion holes 8 are formed on the inner wall of the fixed seat 1.

[0033] Furthermore: The fixed seat 1 serves as the installation foundation of the entire sensor, cooperates with the cover 2 to enclose and protect the internal components of the sensor. The sensor stator 3 is used to detect the relative position of the motor rotating shaft. The positioning mechanism 4 is used to ensure the accurate positioning of the sensor stator 3 in the fixed seat 1. The quick-release mechanism 5 is used to realize the quick installation and disassembly of the sensor stator 3.

[0034] Specifically, the number of the quick-release mechanisms 5 is two, and they are symmetrically arranged on both sides of the sensor stator 3. The number of the positioning mechanisms 4 corresponds to the number of the positioning grooves 7. The quick-release mechanism 5 includes a fixing rod 501 inserted into the fixing hole 6. One end of the fixing rod 501 is threadedly connected with a nut 502. The other end of the fixing rod 501 is fixedly connected with a connecting plate 503. At both ends of one side of the connecting plate 503, sleeves 504 are fixedly installed. An expansion rod 505 is slidably installed in the inner cavity of the sleeve 504. An arc-shaped clamping plate 506 is fixedly installed at the end of the expansion rod 505. At both ends of one side of the arc-shaped clamping plate 506, insertion rods 507 are fixedly installed. A first spring 508 is sleeved outside the sleeve 504. A lever 509 is fixedly installed at the end of the arc-shaped clamping plate 506. The insertion rod 507 is inserted into the insertion hole 8. The arc-shaped clamping plate 506 is in contact with the inner wall of the fixed seat 1. The first spring 508 is located between the arc-shaped clamping plate 506 and the connecting plate 503.

[0035] Furthermore: The fixing rod 501 is connected with the sensor stator 3 through the fixing hole 6. The expansion rod 505 slides in the sleeve 504. The arc-shaped clamping plate 506 is in contact with the inner wall of the fixed seat 1 by the elastic force of the first spring 508. The insertion rod 507 is inserted into the insertion hole 8 to achieve fixation.

[0036] Specifically, the positioning mechanism 4 includes a guide rod sleeve 401 fixedly installed on the inner wall of the fixed seat 1. A guide rod 402 is slidably installed in the inner cavity of the guide rod sleeve 401. A second spring 403 is sleeved outside the guide rod sleeve 401. The end of the guide rod 402 is fixedly connected to a pressing plate 404. The end of the pressing plate 404 is fixedly installed with a positioning rod 405. The positioning rod 405 is inserted into the positioning groove 7.

[0037] Furthermore: The guide rod 402 slides in the guide rod sleeve 401. The contact between the pressing plate 404 and the sensor stator 3 is realized through the elastic force of the second spring 403. The positioning rod 405 is inserted into the positioning groove 7 to achieve positioning.

[0038] Specifically, a spline 9 is provided inside the sensor rotor 10. The sensor rotor 10 is clamped in the card slot on the motor rotating shaft through the spline 9. Through holes are provided at the centers of the fixed seat 1, the cover 2, the sensor stator 3, and the sensor rotor 10 for accommodating the motor rotating shaft.

[0039] Furthermore: The sensor rotor 10 is connected to the motor rotating shaft and is clamped in the card slot of the motor rotating shaft through the spline 9, and works together with the sensor stator 3 to measure the position information.

[0040] Working principle:

[0041] During use, first ensure that the fixed seat 1 is firmly installed on the shaft end housing of the motor through screws and is centered with the motor rotating shaft. Then, the sensor rotor 10 is precisely fitted with the card slot on the motor rotating shaft through the spline 9 inside it to ensure that the sensor rotor 10 and the motor rotating shaft can rotate synchronously and are firmly installed. Subsequently, the fixing rod 501 of the quick-release mechanism 5 is passed through the fixing hole 6 of the sensor stator 3. Ensure that the fixing rod 501 passes through smoothly and the nut 502 is tightly threadedly connected to the end of the fixing rod 501, thereby ensuring that the quick-release mechanism 5 is firmly installed on both sides of the sensor stator 3. Next, the assembled sensor stator 3 is gently placed into the inner cavity of the fixed seat 1, and at the same time ensure that the positioning rod 405 is accurately inserted into the positioning groove 7. Gently press the sensor stator 3, which will drive the pressing plate 404 to compress the second spring 403 appropriately. During this process, the quick-release mechanism 5 will move synchronously until the insertion rod 507 is firmly inserted into the insertion hole 8 under the action of the elastic force of the first spring 508, thus efficiently completing the installation of the sensor stator 3. Finally, the cover 2 is threadedly connected to the end of the fixed seat 1 to ensure the sealing performance, thereby completely completing the installation process of the entire sensor. When it is necessary to disassemble the sensor stator 3, first, rotate the cover 2 counterclockwise to separate it from the fixed seat 1. Then, gently push the lever 509, which will cause the arc-shaped clamping plate 506 to compress the first spring 508 and drive the insertion rod 507 to retract inward until the insertion rod 507 completely disengages from the insertion hole 8, thereby realizing the quick disassembly of the sensor stator 3.

[0042] In summary: Through the design of the quick-release mechanism 5, users can easily achieve the quick installation and disassembly of the sensor stator 3, which not only improves work efficiency but also reduces maintenance costs. Since the sensor stator 3 can be quickly disassembled, when maintaining or replacing the sensor, users do not need to remove the entire sensor from the motor, but only need to replace the stator separately or perform necessary repairs, which greatly improves the maintainability of the sensor. Through the design of the positioning mechanism 4, the precise positioning of the sensor stator 3 in the fixed seat 1 can be ensured, improving the accuracy of position measurement, reducing errors caused by inaccurate installation positions, and effectively avoiding the situation of the sensor stator 3 shifting during use.

Claims

1. A position sensor that is easy to assemble and disassemble, characterized in that: The invention comprises a fixing seat (1), wherein the fixing seat (1) is fixedly mounted on the shaft end housing of the motor by means of screws, one end of the fixing seat (1) is threadedly connected to a sealing cover (2), an inner cavity of the fixing seat (1) is provided with a sensor stator (3) and a sensor rotor (10), and further comprises: A positioning mechanism (4), wherein the positioning mechanism (4) is arranged on an end surface of the inner cavity of the fixing seat (1); A quick release mechanism (5), wherein the quick release mechanism (5) is arranged on both sides of the sensor stator (3).

2. The position sensor that is easy to assemble and disassemble according to claim 1, characterized in that: A fixing hole (6) is provided on the surface of the sensor stator (3), a positioning groove (7) is provided on one side of the sensor stator (3), and an insertion hole (8) is provided on the inner wall of the fixing seat (1).

3. The position sensor that is easy to assemble and disassemble according to claim 1, characterized in that: The number of the quick-release mechanisms (5) is two, and they are symmetrically located on both sides of the sensor stator (3), and the number of the positioning mechanisms (4) corresponds to the number of the positioning slots (7).

4. The position sensor that is easy to assemble and disassemble according to claim 1, characterized in that: The quick-release mechanism (5) comprises a fixing rod (501) inserted into the fixing hole (6), one end of the fixing rod (501) is threadedly connected to a nut (502), the other end of the fixing rod (501) is fixedly connected to a connecting plate (503), both ends of one side of the connecting plate (503) are fixedly mounted with a sleeve (504), a telescopic rod (505) is slidably mounted in the inner cavity of the sleeve (504), an arc-shaped clamping plate (506) is fixedly mounted at the end of the telescopic rod (505), an insertion rod (507) is fixedly mounted at both ends of one side of the arc-shaped clamping plate (506), a first spring (508) is sleeved on the outer side of the sleeve (504), and a shifting rod (509) is fixedly mounted at the end of the arc-shaped clamping plate (506).

5. The position sensor that is easy to assemble and disassemble according to claim 4, characterized in that: The insertion rod (507) is inserted into the inside of the insertion hole (8), the arc-shaped clamping plate (506) is in contact with the inner wall of the fixing seat (1), and the first spring (508) is located between the arc-shaped clamping plate (506) and the connecting plate (503).

6. The position sensor that is easy to assemble and disassemble according to claim 1, characterized in that: The positioning mechanism (4) comprises a guide rod sleeve (401) fixedly mounted on the inner wall of the fixing seat (1); a guide rod (402) is slidably mounted in the inner cavity of the guide rod sleeve (401); a second spring (403) is sleeved on the outer side of the guide rod sleeve (401); a pressure plate (404) is fixedly connected to the end of the guide rod (402); a positioning rod (405) is fixedly mounted on the end of the pressure plate (404); and the positioning rod (405) is inserted into the interior of the positioning groove (7).

7. The position sensor that is easy to assemble and disassemble according to claim 1, characterized in that: The sensor rotor (10) is provided with a spline (9) inside, and the sensor rotor (10) is clamped in a clamping groove on the motor shaft through the spline (9). The fixing seat (1), the cover (2), the sensor stator (3) and the sensor rotor (10) are all provided with a through hole at the center for accommodating the motor shaft.

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